12V Electrics
A fully wired, load-tested power system fitted before the walls go in, ready to run from day one.
Common Pitfalls
The difference between a system that works daily and one that fails on the road comes down to sequencing, sizing and commissioning.
Cable runs hidden behind ply lining cannot be inspected, corrected or safely extended without stripping the interior back out.
Every cable is run and secured before insulation or ply lining is fitted, so each circuit remains accessible and inspectable.
A battery bank chosen without calculating daily amp-hour draw will flatten overnight, leaving appliances dead by morning.
The converter totals the van’s daily power draw and sizes the battery bank’s amp-hour capacity against it before ordering parts.
Running multiple loads from a single fuse means one fault can cut all power, or worse, allow a cable to overheat undetected.
Each branch circuit is individually fused at the DC fuse block, sized to the cable and load it protects.
A system that has never been load-tested may pass a visual inspection but fail under real daily use due to voltage drop or a poor chassis earth.
Commissioning covers a voltage drop check across loaded circuits, chassis earth grounding continuity, and confirmed charge input from each source.
What’s Covered
From a basic lighting and charging setup to a full off-grid power system, the scope is matched to what you actually need to run.
Lithium or AGM leisure battery bank sized to your amp-hour needs, with positive and negative bus bars for clean distribution.
Individual fused branch circuits for every load, plus a master disconnect switch to isolate the system safely when the van is parked.
240V inverter wired and mounted where 230V appliances such as a laptop charger or kettle are needed on the road.
MPPT charge controller connected to the solar array, sized to the panel wattage and battery bank capacity.
Battery-to-battery charger for alternator input and a shore power inlet for hook-up charging at campsites or home.
12V LED lighting run on its own fused circuit.
Flush-mounted sockets wired to the fuse block.
Old or unsafe wiring replaced and brought up to spec.
Guidance and finishing work for a stalled self-build.
Why Choose Us
Business-level assurance that the job is planned, quoted and handed over correctly, not just wired and left.
A written quote covers components, cable spec, labour and timeline so there are no surprises once the work starts.
We arrange a Lincoln-based converter who knows the job and can be reached if a question comes up after handover.
Every enquiry gets a response within one working day, no waiting a week to find out if the job is even possible.
The converter tests the system under load and walks you through every switch, fuse and charging input before you drive away.
Electrics can be arranged as a standalone install or alongside heating, plumbing and furniture as part of a wider build.
How It Works
01
Tell us the van model, what you want to run, and when you need it done, we pass the details to a local converter the same day.
02
The converter reviews the scope and returns a written quote covering components, cable spec, labour and timeline within one working day.
03
The converter fits and commissions the system, then walks you through every circuit, fuse and charging input before you take the van.
Pricing Estimates
| Job | Typical cost |
|---|---|
| Basic leisure battery setup | £900-£1,800 |
| Mid-range electrical system | £1,800-£3,500 |
| Larger off-grid system | £3,500-£6,000 |
| Premium electrical system | £6,000-£8,000 |
Describe the van, what you need to run, and roughly when you need it. A local converter returns a written, itemised quote within one working day, no obligation until you are happy to go ahead.